Cotton-cleaner.



.pneumatic conveyer 'on its wav to the gin.-

of Fig. 1, showing the knivesl or fixed breakis to provide a cleaner in which the foreign 'The hopper opens at its upper en -of the door of the throat, or a filler-block A HEBY JACKSON DAVIS, OF BIRHINGHAH, ALABAMA.

COTTON-CLEANER..

Specification of Letten Yatent.

' Patented Feb. 25, 1913.

Application tlled July 22, 1918.' Serial Io. 710,888.

To cil 'whom it'may concern.'

Be it` known that LiHuNRy Jamison' Davis', 4a. citizen of the United States, residing at Birmingham, in the county of J eiferson andState of'Alabama, have invented certain new and useful Improvements in Cotton-Cleaners-,of which the following is a specification.' i

M v present invention pertains to cot-toncleaners, and hasto deal more particularly with a cleaner adapted to remove foreign matter from cotton as it passes through a The invention is illustrate in the annexed drawings, wherein:

Figure 1 is a longitudinal sectional view of the cleaner; Fig. 2 a portion thereof on an enlarged scale; Fig.`8 a horizontal section o n theline'IIl-III of Fi 2; Fi 4 a transverse sectional view on t e line I -IV ers; and Fig. a perspective view of the underside of one of thegravitating screens.

The main object-o the present invention material will be loosened from' the cotton, separated therefrom, and finally discharged, the action of the device being automatic.

In the drawings, 1 denotes the hoppersha ed receptacle, having a door 2 hinged to tie lower end thereof, and adapted to be kept closed by the suction of the ap aratus.

into a channel or way 3, the upper wall 4 of which is curved downwardly toward thetmouth of the hopper'.

The inlet for the cotton isdesignated by 5, and the outlet by 6, it bein understood that the device may be insert in the conve er at any desired point. y

xtending downwardl into the throat of the cleaner is a series'o knives 7, the forward edges of the knives being inclined rearward y and the knives terminating short 8 located below the knives. l y

Extendingacross the hopper between 'its side walls, and adjacent the upper end thereof is a series of cross-bars or lates 9, the bars being evenly s aced an rpleferably standing 1n a vertica position. ese bars form a series of transversely-extending passages leading from the way or channel 3 into the ho per, and each of said passages is guard by a avitating semer-door or cloaure, 10. Bald door is prefemoly made of sheet metal and provided with a seriesof perforations, the upper end of thedoor being formed into'a barrel or tubularV member 11, adapted to receive lead or any-other suitable material, as indicated at 12, such material serving as a weight. Each door is also provided with a pair of ears 13, ar-v ranged neanthe upper end thereof, said ears being adapted to receive a pintle 0r axle 14. which finds its bearing in the side walls of the structure. The pintle is so arranged with reference to thc length of the door, and the wei ht 12 is so proportioned, that the doors wil be held in their closed osition, as shown in Fig. 1 and in' full ines in Fig. 2. Normally, the barrel-shaped portion 1l overlies the upper end of the adjacent cross-bar 9-or thetiller block 8 at the left in Figi 1. The lower .end of each door passes beneath the lo`wer end of the opposite cross-bar 9, with the exce tion -of that door which is adjacent the fi er-block 8, the lower end of said door contacting.

with said filler-block, as shown in Figs. 1 and 2. Stop pins 15 serve to limit the swingingrnovementbf the lower end of the doors when the weight of the accumulated material thereon overcomes the weight 12 'and causes the door to swing downwardly into the position shown in Fig. 2.

` When in action the parte will occupy the positions shown in ful lines in Fig. 1;' that 1s to sa owing to the suction the door 2 will be eld closed and the cotton drawn inwardly in the direction of the' arrow across the knives 7 and opened upthereby to a greater or less extent, topermit any forel material to pase therefrom. The cotton 1n passing through the wa or channel 3 will 4come in contact with the snel-shaped members 11 and will be beaten out thereby, so that an forel matter which waanot dislodged y the 'ves 7 will ultimately beremoved from the cotton and .deposited upon the screen-doors. When `the accumulated material upon any door overcomes the balance of the door, said door will open and discha 'the material into the ho per 1, in which 1t will accumulate until suc time as the' weight of ,the material actin on the door 2 overcomes the suction and a lows the door to open and discharge the material. The discharge will also take place when the suction is The crq- 9 and the pivoted doors may be sud to form a series of pockets, the

doors forming 'the lower portions of said pockets. Havin thus described-my invention,

what I c aim is:

1. vIn a cotton-cleaner,.the'combination of a hopper having a way or 'channel extending over the upper end tbereofi'lmeans located in said way for opening up tht` cotton pissing therethrough; and a. series of gravitating doors located in the mouth vot' the hopperandadapted to receive the material dislod ed from the cotton and to automatically ischarge the same from time to time into the hopper.

2. In a cotton-cleanenthe combination of a hopper having a wav or channel extending over the upper end thereof for the pasl sage of the cotton to be cleaned; and a ries of gravitating doors located in the mouth of the hopper, said doois being perforate and adapted to automatically discharge material into the hopper. i,

3. In a cotton-cleaner. the combination of a hopper; a way or channel extending'over the mouth of the saine and tln'ough which' the cotton is adapted to he drawn; a series of cross-bars extending from side. to side' of the hopper at the mouth thereof: and a' series of inclined screen-doors ivotallvA mounted adjacent to the upper en: of each of said cross-bars. said doorsl being nol-, maitv closed and adapted to open under the l weight of material deposited thereon. i

4. In a co -cleancr` the combination ot. a hopper; a: or channel extending over' the upper end thereof and through which;

the cotton is to he passed; a. series of cross'- hars extending from side to side of the hopper adjacent to the month thereof and 't'orinv ing a series of channels leading into' the hopper; and n pivotcd screen-door j vuardiing;v each of. said channels, said door being weighted at'its upper end and adapted to he heldby'said weight. in its closed position and to be opened from time to time by the, deposit.of material thereon, and to discharge the same into the hopper.

5. In a cotton-cleaner, thev combination ot` a hopper; a way or channel located above Copies of this patent may belo'btained for ave cents each.

the' upper end thereof'through which the cotton is adapted to be drawn; a series of cross-bars-extending,from side to side of said hopper into the upper end thereof and forming a series of channels leadin into the hop er.: and :tscreen-door ada te to nor mal yiclose each of said charme s, the doors -heingpivoted adjacent their upper end and each having a weight located at its upper4 end adapted tohold the door in its closed position.

6. In a cotton-cleaner, the combination of a hopper: a way or channel extending over the sume through which the cotton is adapted to be drawn: a series of cross-bars located in the mouth of the hopper and formingI a series of ways orl channels communieating with the channel aforesaid; a screendoor for each of said channels. said door being;r piroted adjacent its upper end and provided with a barrel at said upper end adapted to overlie the adjacent' cross-bar: a weight mounted V-in said barrel; and means for limiting the downward swinging movement. of the door when opened b v ti'ieactiou of the material deposited thereon.

7. In a cotton-cleaner, the combination of a way or channel through which the cotton is drawn: and a series of ,eravitatimel doors provided with projections at: their upper ends with which the cotton comes in contact and'is thereby beaten out. 8. Tn a cotton-cleaner, the combination 'ot a way or channel through which the cotton is drawn; and a series of pivoted, gravitatim: 'doors lotmted in the lower portion of said way or channel, said doors standing in an. inclined position and provided with bnrl "rel-shaped members at their upper endsxvith A. H. Bum..

by addressing the "Commissioner of Pgbntl,

Washington, ZD. C. 

